Portable drum flange turning machine



Aug. 9, 1966 v. H. cRlDER PORTABLE DRUM FLANGE TURNING MACHINE 2Sheets-Sheet 1 Filed Dec. 2, 1963 INVENTOR. VER'N H. CP/DEF BY 6 @MM/Aug. 9, 1966 v. H. CRIDER PORTABLE DRUM FLANGE TURNING MACHINE 2Sheets-Sheet 2 Filed Dec. 2, 1963 INVENTOR VERN H. CR/DER 6, 4i Jfimfl/ATTORNEY N vm United States Patent 3,264,911 PORTABLE DRUM FLANGETURNENG MACHINE Vern H. Crider, 2530 Bank St., Bakersfield, Calif. FiledDec. 2, 1963, Set. N0. 327,238 2 Claims. (Cl. 82-4) This inventionrelates to a portable device for refinishing or turning the surfaces ofdrum flanges of a draw works or similar drilling apparatus.

The braking flanges at the ends of a cable drum of draw works frequentlybecome badly scored, worn and abraded. The surfaces of such flangeshave, in the past, been refinished only after dismantling of the drumfrom its bearings. Such an operation is expensive for two reasons-thecost of turning the flanges and the cost involved in long layup time ofthe machine.

The present invention has for an object to provide a flange-refinishingmachine that performs its operation on the flanges while the drumremains in position in the draw works.

Another object of the invention is to provide a portable machine of thecharacter referred to for simultaneously turning both flanges on theopposite ends of a draw works cable drum.

This invention also has for its objects to provide such means that arepositive in operation, convenient in use, easily installed in a workingposition and easily disconnected therefrom, economical of manufacture,relatively simple, and of general superiority and serviceability.

The invention also comprises novel details of construction and novelcombinations and arrangements of parts, which will more fully appear inthe course of the following description, and which is based on theaccompanying drawings. However, said drawings merely show and thefollowing description merely describes, preferred embodiments of thepresent invention, which are given by Way of illustration or exampleonly.

In the drawings, like reference characters designate similar parts inthe several views.

FIG. 1 is a plan view of a portable drum flange turning machineaccording to the present invention, and shown in operative position withrelation to a draw works and the brake flange on the drum thereof.

FIG. 2 is an enlarged front elevational view of the tool portion of saidmachine, as in the position of FIG. 1.

FIG. 3 is a plan view, similar to FIG. 1, showing a modification ofsimultaneously turning both flanges of a draw works drum.

FIGS. 1 and 3 show the base or frame 5 of a draw works, a cable drum 6having end brake flanges 7 and 8 i being disposed in its usual operativeposition mounted on a shaft 9 that is driven by a drive 10 from anysuitable prime mover. The brake bands, ordinarily associated with theflanges 7 and 8, have been removed to expose the cylindrical faces ofsaid flanges. It is these surfaces 11 and 12 that, according to thewear, abrasion and scoring thereof, require to be re-faced to restorethe braking function of the draw works to maximum efliciency. With thebrake bands removed, the drum is rotated by the drive 10 at a desiredrate according to the depth of the facing cut that is made in thesurfaces 11 and 12. The frame 5 includes a platform 13 that is usuallyprovided with a framing brace 14 defining the opening in the base 5 inwhich the drum 6 and its flanges 7 and 8 reside.

The present machine may be mounted on any suitable portion of theplatform 13. In this case, angle brackets 15 and 16 may be affixed, asby welding, in front of the respective brake flanges 7 and 8, and usedfor mounting the turning component of the machine. These brackets may beinitially provided against the time they will be needed, or be providedat the time a flange-turning operation is to be instituted.

The present flange-turning machine comprises, genrally, a turningcomponent 20 adapted to be secured to bracket 15 or 16, depending onwhich drum flange is to be turned, as in FIG. 1, or two turningcomponents 20 and 21 adapted to be secured to both brackets 15 and 16 incases where both flanges are to be turned simultaneously, as in FIG. 3,a drive component 22 to operate the component 20 of FIG. 1 or the twocomponents 20 and 21 of FIG. 3, and an articulated driving connection 23between the component 22 and the flange-turning components.

The turning components 20 and 21 are generally alike.

Each comprises a base plate 25 adapted to be affixed to a bracket 15 or16, as the case may be, by screws or bolts extending through holes 26 insaid brackets, a slide 27 mounted on the plate 26 and guided by slideplates 28 to move longitudinally along said base plate, the slide beingprovided with an internal screw seat whereby the same constitutes a nut,a lead screw 29 engaged with the slide nut and maintained againstendwise movement in end bearings 30 on the base plate 25, a plate 31affixed to the slide 27, a generally conventional tool holder 32adjustably mounted on said plate 31 so that the tool 33 may be presentedto the cylindrical face of the drum flange to be turned or faced at adesired angle according to conventional machining practices, the toolholder being provided with compound slides to enable usual adjustmentsof the tool 33 to bring the same to bear on the surface to be machined.The two different angular positions of the tool holder with respect tothe base of the turning component, as in FIGS. 1 and 3, are examples ofthe different angular adjustments of the tool holder and tool that maybe made.

Since the base plate 25 is arranged so its length is parallel to theaxis of the flanges 7 and 8, it will be clear that rotation of the leadscrew 29 in one direction or the other will cause traverse of the toolholder in a corresponding direction and cutting of the tool 33 into thesurface 11 or 12 of the drum flanges, as indicated at 34 on drum surface11.

The component 22 is shown as mounted on a base 35 and provided with aguard 36. Said component comprises a reversible motor 37 provided with aspeed reducer 38 that terminates in an output shaft 39, and is served byan electrical reversing unit 40 that can be set to drive the motor 37 ineither direction.

Electric current is conducted to the unit 40 by means of a cable 41 anda cable 42 connects said unit with a startand-stop switch 43. In thiscase, the switch 43 is shown as being opened by means 44 provided on thetool holder 32, but the same may be manually operated, if desired, forboth on and off positions.

The component 22 need not be fastened down, but may be placed at anyconvenient place, as limited by the driving connection 23.

In the form of FIG. 1, the driving connection 23 is shown as a shaft 45that, by a universal joint 46, is connected to the lead screw 29 and, bya universal joint 47, is connected to the output shaft 39 of the speedreducer 38.

In the form of FIG. 3, the connection 23 is shown as a flexible shaftwhich may be advantageously used due to the low rotation speed of theoutput shaft 39.

In the modification, a connection 48 between the lead screws of thecomponents 15 and 16 may be formed to be extensible to accommodatedifferent spacings of the components as required by the spacing of thebrake flanges 7 and 8. In this case, a polygonal extension 49 of onelead screw telescopically connects with a sleeve 50 with a similarsocket, as shown. Keys, flats or other telescopic and non-rotationallyconnected extensions of the lead screws may be used.

It will be clear that, after removal of the brake bands, it is a simplematter to place one or a gang-connected pair of flange-turningcomponents in operative position to face the drums, thus performing thisoperation without excessively tieing up the draw works and the attendingcrew of workers.

While the foregoing has illustrated and described what is nowcontemplated to be the best mode of carrying out the invention, theconstructions are, of course, subject to modification without departingfrom the spirit and scope of the invention. Therefore, it is not desiredto restrict the invention to the particular forms of constructionillustrated and described, but to cover all modifications that may fallwithin the scope of the appended claims.

Having thus described the invention, what is claimed and desired to besecured by Letters Patent is:

1. A portable machine for turning the brake flanges at the ends of adrum of a draw works, said machine comprising:

(a) two similar and longitudinally aligned machining components adaptedfor removable mounting in spaced fixed position,

(b) a drive component adapted for non-secured position relative to thedraw works,

(c) an articulated driving connection from said drive component to oneof said machining components, and

(d) a telescopically extensible drive connection between the machiningcomponents to permit selective longitudinal spacing of the machiningcomponents.

2. In a portable machine according to claim 1 in which the articulateddriving connection from said drive component to one of said machiningcomponents is in the form of a flexible shaft.

References Cited by the Examiner UNITED STATES PATENTS 585,836 7/1897Sweet 828 X 759,644 5/1904 Sturtevant 824 X 1,085,710 2/1914 Tyler etal. 824 1,857,457 5/1932 Kimmel 824 2,142,882 1/1939 Benzon 8282,145,194 1/1939 Backer 824 2,434,498 1/1948 Klassett 824 X 2,492,59612/1949 Ross 824 ANDREW R. JUHASZ, Primary Examiner.

HARRISON L. HINSON, WILLIAM W. DYER, 1a.,

Examiners.

1. A PORTABLE MACHINE FOR TURNING THE BRAKE FLANGES AT THE ENDS OF ADRUM OF A DRAW WORKS, SAID MACHINE COMPRISING: (A) TWO SIMILAR ANDLONGITUDINALLY ALIGNED MACHINING COMPONENTS ADAPTED FOR REMOVABLEMOUNTING IN SPACED FIXED POSITION, (B) A DRIVE COMPONENT ADAPTED FORNON-SECURED POSITION RELATIVE TO THE DRAW WORKS, (C) AN ARTICULATEDDRIVING CONNECTION FROM SAID DRIVE COMPONENT TO ONE OF SAID MACHININGCOMPONENTS, AND